speed of the haul hand vs. speed of the rod hand.
I fell into the trap of thinking more acceleration with the rod hand was the key. Actually, it's the opposite. The haul hand is the key to line speed.
Both these vids address this. You're actually a little more aggressive with the line hand than the rod hand, IMO.
http://www.youtube.com/watch?v=Zgk19pNEoZQ" onclick="window.open(this.href);return false;
Lefty goes over this pretty well.
Low elbow, long stroke, sharp tugs with the line hand speed up the line. Watch how the first guy in the Charleston vid snaps his haul hand. Lefty does the same on his second haul.
Good stuff, IMO.